(Remove/Install Multicontour Backrest Air Cushion - AR91.25-P-1740G)

Model 463 

up to model year 2000 

with code H10 (Seat heaters for driver and front passenger) 

with code SK2 (Left electrically adjustable front seat with orthopedic backrest) 

with code SK3 (Right electrically adjustable front seat with orthopedic backrest) 

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove covering on front seat backrest	Model 463.200/204/206/207/208/209/220/221/224/225/227/228/230/231/232/233/240/241/300/304/307/308/320/321/324/325/327/328/330/331 up to model year 2000 with code H10 (Seat heaters for driver and front passenger) with code SK2 (Left electrically adjustable front seat with orthopedic backrest) with code SK3 (Right electrically adjustable front seat with orthopedic backrest)	AR91.18-P-1820GA
2	Pull pneumatic line for air cushion (1) out of solenoid valve (Y82, Y82/1)
3	Remove retaining plate for air cushion (2) from backrest frame	Unscrew nuts on air cushion retaining plate from backrest frame (3).
4	Remove air cushion (4)	Before installation, carefully inflate air cushion (4) (max. 200 mbar) and check for leak tightness.
5	Install in the reverse order
6	Check function of multicontour seat	See owner's manual.